All my gear is black. There is some blue graphic on my F-2B but it's almost invisible.
I just returned from the corner store with a set of clear blue and clear. The blue is nice but not bright enough compared to the clear ones.

I have seen "nightlite-sized" balcklight bulbs online, but for the life of me I can't remember where. Great for rack lights, they really bring out the white lettering (if you have that), and they case a cool purple glow that looks very unnatural.